1 //===-- XCoreTargetMachine.cpp - Define TargetMachine for XCore -----------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "XCoreTargetMachine.h"
14 #include "XCore.h"
15 #include "llvm/CodeGen/Passes.h"
16 #include "llvm/IR/Module.h"
17 #include "llvm/PassManager.h"
18 #include "llvm/Support/TargetRegistry.h"
19 using namespace llvm;
20
21 /// XCoreTargetMachine ctor - Create an ILP32 architecture model
22 ///
XCoreTargetMachine(const Target & T,StringRef TT,StringRef CPU,StringRef FS,const TargetOptions & Options,Reloc::Model RM,CodeModel::Model CM,CodeGenOpt::Level OL)23 XCoreTargetMachine::XCoreTargetMachine(const Target &T, StringRef TT,
24 StringRef CPU, StringRef FS,
25 const TargetOptions &Options,
26 Reloc::Model RM, CodeModel::Model CM,
27 CodeGenOpt::Level OL)
28 : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
29 Subtarget(TT, CPU, FS, *this) {
30 initAsmInfo();
31 }
32
33 namespace {
34 /// XCore Code Generator Pass Configuration Options.
35 class XCorePassConfig : public TargetPassConfig {
36 public:
XCorePassConfig(XCoreTargetMachine * TM,PassManagerBase & PM)37 XCorePassConfig(XCoreTargetMachine *TM, PassManagerBase &PM)
38 : TargetPassConfig(TM, PM) {}
39
getXCoreTargetMachine() const40 XCoreTargetMachine &getXCoreTargetMachine() const {
41 return getTM<XCoreTargetMachine>();
42 }
43
44 bool addPreISel() override;
45 bool addInstSelector() override;
46 bool addPreEmitPass() override;
47 };
48 } // namespace
49
createPassConfig(PassManagerBase & PM)50 TargetPassConfig *XCoreTargetMachine::createPassConfig(PassManagerBase &PM) {
51 return new XCorePassConfig(this, PM);
52 }
53
addPreISel()54 bool XCorePassConfig::addPreISel() {
55 addPass(createXCoreLowerThreadLocalPass());
56 return false;
57 }
58
addInstSelector()59 bool XCorePassConfig::addInstSelector() {
60 addPass(createXCoreISelDag(getXCoreTargetMachine(), getOptLevel()));
61 return false;
62 }
63
addPreEmitPass()64 bool XCorePassConfig::addPreEmitPass() {
65 addPass(createXCoreFrameToArgsOffsetEliminationPass());
66 return false;
67 }
68
69 // Force static initialization.
LLVMInitializeXCoreTarget()70 extern "C" void LLVMInitializeXCoreTarget() {
71 RegisterTargetMachine<XCoreTargetMachine> X(TheXCoreTarget);
72 }
73
addAnalysisPasses(PassManagerBase & PM)74 void XCoreTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
75 // Add first the target-independent BasicTTI pass, then our XCore pass. This
76 // allows the XCore pass to delegate to the target independent layer when
77 // appropriate.
78 PM.add(createBasicTargetTransformInfoPass(this));
79 PM.add(createXCoreTargetTransformInfoPass(this));
80 }
81